<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>02_新增状态标签.</title>
</head>
<body>
<span>手机电量</span>
<!--
max:最大值
min:最小值
value:当前所在值
low:底值
high:高值
optimum:最优值,正常值,在哪个区间,哪个区间就是正常值
-->
    <meter max="100" min="0" value="90" low="20" high="80" optimum="90"></meter>
<br>
<span>当前进度</span>
<!--
max:规定目标值
value:规定当前值

-->
<progress max="100" value="80" ></progress>
</body>
</html>